Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 8910 Randolph St, Houston, TX 77061

HCAD #0432280000051
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🌍Environmental Assessment

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊Flood Risk Analysis
FEMA Zone X
Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address
8910 Randolph St, Houston, TX 77061
Elevation
40.11 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating
Very High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
49.95 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
247.3 acres
83.9% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
Analysis Method
COG Combined 5000 Model
Raster-based flood inundation query
Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

Property Would Be Flooded
Flood Depth: 9.84 feet
Severity
Severe
Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool
Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
35.0th percentile
Property Pollution Ranking
Moderate
Higher pollution than 65% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
117 thousandlbs
High
17.9x more than typical Houston property
≈ 6 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
116 thousandlbs
High
24.1x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
361lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
6
Industrial facilities within 2 miles
💡
Why It Matters: High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.
Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)116,565 lbs116,204 lbs361 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)14,318 lbs14,294 lbs24 lbs
How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted
9.9%
10-19th
10.1%
20-29th
9.9%
30-39th
10.1%
40-49th
9.7%
50-59th
10.2%
60-69th
6%
70-79th
5.8%
80-89th
4.3%
90-100thLowest Pollution
34.2%
Higher pollution than 65% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile.
📋
Top chemicals released near this property (past 10 years):
Toluene, N-Methyl-2-pyrrolidone, Xylene (mixed isomers), Styrene, Nitric acid
View the full list of 23 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(23 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Toluene108-88-363,499 lbs0 lbs63,499 lbs
2N-Methyl-2-pyrrolidone872-50-417,750 lbs0 lbs17,750 lbs
3Xylene (mixed isomers)1330-20-79,703 lbs0 lbs9,703 lbs
4Styrene100-42-54,199 lbs0 lbs4,199 lbs
5Nitric acid7697-37-24,015 lbs0 lbs4,015 lbs
6Formic acid64-18-62,598 lbs0 lbs3,355 lbs
7Copper7440-50-82,452 lbs0 lbs2,452 lbs
8Nickel7440-02-02,057 lbs1 lbs2,058 lbs
9Nickel compoundsN4951,754 lbs156 lbs1,910 lbs
10Chromium7440-47-31,793 lbs2 lbs1,795 lbs
11Ethylene glycol107-21-11,562 lbs0 lbs1,562 lbs
12Nickel And Nickel CompoundsN4951,505 lbs13 lbs1,518 lbs
13Ethylbenzene100-41-41,452 lbs0 lbs1,452 lbs
14Certain glycol ethersN230945 lbs0 lbs945 lbs
15Methanol67-56-1558 lbs0 lbs558 lbs
16Diethanolamine111-42-2205 lbs0 lbs205 lbs
17Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs173 lbs173 lbs
18Manganese7439-96-562 lbs0 lbs62 lbs
19Tetrachloroethylene127-18-457 lbs0 lbs57 lbs
20Cyclohexane110-82-731 lbs0 lbs31 lbs
21Zinc compoundsN9820 lbs16 lbs16 lbs
22Lead7439-92-16 lbs0 lbs6 lbs
231,2-Dichlorobenzene95-50-11 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Xylene (mixed isomers), Toluene, Ethylbenzene, Nickel And Nickel Compounds, Nitric acid
View the full list of 16 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(16 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Xylene (mixed isomers)1330-20-79,703 lbs0 lbs9,703 lbs
2Toluene108-88-31,510 lbs0 lbs1,510 lbs
3Ethylbenzene100-41-41,452 lbs0 lbs1,452 lbs
4Nickel And Nickel CompoundsN495500 lbs5 lbs505 lbs
5Nitric acid7697-37-2500 lbs0 lbs500 lbs
6Copper7440-50-8264 lbs0 lbs264 lbs
7Formic acid64-18-6239 lbs0 lbs239 lbs
8Methanol67-56-146 lbs0 lbs46 lbs
9Tetrachloroethylene127-18-436 lbs0 lbs36 lbs
10Nickel7440-02-022 lbs1 lbs23 lbs
11Zinc compoundsN9820 lbs16 lbs16 lbs
12Chromium7440-47-314 lbs2 lbs16 lbs
13Manganese7439-96-57 lbs0 lbs7 lbs
14Ethylene glycol107-21-11 lbs0 lbs1 lbs
15Lead7439-92-11 lbs0 lbs1 lbs
16Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1 lbs1 lbs
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